Setup: Put a target block and a dispenser next to the target block, with its opening towards the target block. Put projectiles like snowballs or arrows into the dispenser and activate the dispenser.

Expected Result:
The target block detects the projectile and gives out a redstone signal.

Observed Result:
The projectile hits the target block and no redstone pulse is given.

Other Versions:
This does not happen in java edition as shown in video by Mumbo Jumbo

Redstone... But only using Target Blocks
https://www.youtube.com/watch?v=So2RlXZ9vkM

Thanks